蝗虫生境评价信息系统的设计与实现

Design and realization of locust habitat assessing information system.

主要论述了蝗虫生境评价信息系统的设计目标、数据流程及结构设计、数据库设计、模型库设计及功能设计,并简要说明了所建系统的实现。研究表明,基于GIS技术所建立的蝗虫生境评价信息系统,可对影响蝗虫发生的生境因子进行综合分析以及针对蝗虫潜在发生可能性对蝗虫生境进行定量评价,从而为蝗虫发生和成灾的监测和防治提供强有力的技术手段。蝗虫生境评价信息系统除了应具备信息系统的基本功能和一般统计分析功能外,还应重点加强其生境评价功能,如评价因子选择和权重管理,评价指标量化,评价等级划分,评价指标的加权求和,以及总分值的划分。

In this paper, the design issues of locust habitat assessing information system were indicated, including overall aims, data flow, structure, data base, model bank and functions of the system as well as its realization. The study showed that the established system supported by GIS technology was capable to analyze comprehensively the habitat elements and assess quantitatively the habitats in terms of the probability of locust occurrence, therefore, it may provide a powerful technical tool for monitoring and prevention of locust occurrence and outbreak. In addition to the basic functions of normal information systems and the statistics functions, the functions directly related to habitat assessing should be strengthened, such as selecting of the assessing elements and the management of their weights, quantization of the elements, setting up assessing grades, weighted summation of element values, and dividing of total scores.